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client-ip=40.67.248.234; helo=nebula.arm.com; From: Wei Chen To: , , , , CC: Subject: [XEN RFC PATCH 36/40] xen/arm: keep guest still be NUMA unware Date: Wed, 11 Aug 2021 18:24:19 +0800 Message-ID: <20210811102423.28908-37-wei.chen@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210811102423.28908-1-wei.chen@arm.com> References: <20210811102423.28908-1-wei.chen@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 424edb30-3815-4983-ade0-08d95cb270aa X-MS-TrafficTypeDiagnostic: VE1PR08MB5133:|DB9PR08MB6348: X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true NoDisclaimer: true X-MS-Oob-TLC-OOBClassifiers: OLM:6790;OLM:6790; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: pgmEJHhkc+S7yCR7TsJ9+YUM/gvDwc1dysiaIrrVckk2Eqe/LosQP41kHNOf85LcjRFC2i2ldhYXo9JZkEEmklhur8j/cYPpQRFgxWBu5p7p+G+RNn/gjn4LAinC3JjEECNbUAP5uQAG0rZpuLLS32RQNfxP6Wc3ffKmsgEQwawZZynEX7mWkeCb/QDXG/p1mYYJQkypBXzGI6m7cUsTbtkP48vJRUoJCsgR7uvguPZUxq6FNK4RD1Dxht2VE5KKg9BIAu/1kxBS/Pqe1JYdsqbQA9rDeYHNG8YHI0BvD/YJIndC1b170wDpIhXzUX/u4zWK2nZYdKun8xiXGeC6FZL0pwX1lM/hzU0BqnMrg1F3kUkBIfZ1Ts8QILRlRpDWKVKCtzlMnAsdmRYMXmOSGpURYy5hXEexKidnzujZGJMnBNpxZEuPi9BCXsIdbavCyRdgA4QfU8s0a72JBjn6eNqS+BgmcedeegV86Z4pj6TX2sj1n4bb9PHylb7I45VYdzyz/CjOEKzYncb8w2J5xWAetOEMd22Y2Sz78GJ+/PwqunsOH9drRRZhZlcQXqVu4fzYPyg+fR0C+i0Ty/1Io9Ib3DgoKRHnZUP52djp4RVw9jxb5WXaEWgLBHyui0mNGbWnTn7rlKYuXv/P9M6Kpw3k05ZDEs4hLFpj3pwpR9X1nHE1nqh6lnVWBU9tkOnvAmbsCrfDLVSoZXrA5dfgCZnmxX8ipCV2aUg6fsrsenCVO0NyrkMRhc+2Gt1hCDP8DnJdHLGcH4hMUeomgWjZFP/OsGHfRfDkAlob8MqeHIc= X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234;CTRY:IE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:nebula.arm.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(4636009)(39860400002)(376002)(346002)(396003)(136003)(36840700001)(46966006)(82310400003)(356005)(426003)(26005)(4326008)(70586007)(336012)(36860700001)(1076003)(478600001)(2616005)(86362001)(5660300002)(47076005)(8936002)(7696005)(70206006)(2906002)(186003)(110136005)(8676002)(316002)(36756003)(82740400003)(44832011)(81166007)(34070700002)(6666004)(36900700001)(2101003);DIR:OUT;SFP:1101; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Aug 2021 10:26:11.3144 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 424edb30-3815-4983-ade0-08d95cb270aa X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM5EUR03FT027.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR08MB6348 X-ZohoMail-DKIM: pass (identity @armh.onmicrosoft.com) X-ZM-MESSAGEID: 1628677935332100003 Content-Type: text/plain; charset="utf-8" We have not wanted to make Xen guest be NUMA aware in this patch series. So in this patch, Xen will skip NUMA distance matrix node and skip the numa-node-id property in CPU node and memory node, when Xen is creating guest device tree binary. Signed-off-by: Wei Chen --- xen/arch/arm/domain_build.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index cf341f349f..e62fa761bd 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -584,6 +584,10 @@ static int __init write_properties(struct domain *d, s= truct kernel_info *kinfo, continue; } =20 + /* Guest is numa unaware in current stage */ + if ( dt_property_name_is_equal(prop, "numa-node-id") ) + continue; + res =3D fdt_property(kinfo->fdt, prop->name, prop_data, prop_len); =20 if ( res ) @@ -1454,6 +1458,8 @@ static int __init handle_node(struct domain *d, struc= t kernel_info *kinfo, DT_MATCH_TYPE("memory"), /* The memory mapped timer is not supported by Xen. */ DT_MATCH_COMPATIBLE("arm,armv7-timer-mem"), + /* Numa info doesn't need to be exposed to Domain-0 */ + DT_MATCH_COMPATIBLE("numa-distance-map-v1"), { /* sentinel */ }, }; static const struct dt_device_match timer_matches[] __initconst =3D --=20 2.25.1